Impact of I/Q imbalance on the performance of two-way CSI-assisted AF relaying

by Jian Qi, Sonia Aissaz, Mohamed-Slim Alouini
Conference Proceedings Year: 2013


J. Qi, S. Aissa, and M. -S. Alouini, Impact of I/Q imbalance on the performance of two-way CSI assisted AF relaying, In Proc. IEEE Wireless Communications and Networking Conference (WCNC 2013), Shanghai, China, April 2013.


In this paper, we investigate half-duplex twoway dual-hop channel state information (CSI)-assisted amplifyand-forward (AF) relaying in the resence of in-phase and quadrature-phase (I/Q) imbalance. A compensation approach for the I/Q imbalance is proposed, which employs the received signals together with their conjugations to detect the desired signal. We also derive the average symbol error probability of the considered
half-duplex two-way dual-hop CSI-assisted AF relaying networks with and without compensation for I/Q imbalance in Rayleigh fading channels. Numerical results are provided and show that the proposed compensation method mitigates the impact of I/Q imbalance to a certain extent.


Accepted for publication


Uncertainty Quantification